What is Dan Reiff's NPI number?

Dan Reiff's National Provider Identifier (NPI) is 1184779845, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Dan Reiff's specialty?

Dan Reiff is listed in the NPPES registry with a primary specialty of Nutritionist (Dietary & Nutritional Service Providers).

Where is Dan Reiff located?

Dan Reiff's practice location on file with NPPES is 9725 Se 36th St, Mercer Island, WA 98040-3841.

What is Dan Reiff's phone number?

The practice phone number listed in the NPPES registry for Dan Reiff is (206) 232-8404.

Is Dan Reiff's NPI active?

Yes — Dan Reiff's NPI (1184779845) is active in the NPPES registry as of the last update on 2025-09-11.

IndividualActive

Dan Reiff, PH.D.

NPI 1184779845 · Nutritionist · Mercer Island, WA

Dan Reiff, PH.D. is a Nutritionist provider in Mercer Island, WA (NPI 1184779845).

Provider details

NPI number: 1184779845
Entity type: Individual
Primary specialty: NutritionistDietary & Nutritional Service Providers
Credential: PH.D.
Sex: Male
Sole proprietor: Yes
License: LH00009322 (WA)

Practice location

9725 Se 36th St

Suite 301

Mercer Island, WA 98040-3841

Phone: (206) 232-8404

Street-level locationGet directions

More WA providers

Mailing address

9725 Se 36th St

Mercer Island, WA 98040-3841

Specialties & taxonomies

NutritionistPrimary133N00000XLicense NU00000947 (WA)
Dietary & Nutritional Service Providers
Mental Health Counselor101YM0800XLicense LH00009322 (WA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(90/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Enumerated: 2007-01-24
Last updated: 2025-09-11

Frequently asked questions

What is Dan Reiff's NPI number?: Dan Reiff's National Provider Identifier (NPI) is 1184779845, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Dan Reiff's specialty?: Dan Reiff is listed in the NPPES registry with a primary specialty of Nutritionist (Dietary & Nutritional Service Providers).
Where is Dan Reiff located?: Dan Reiff's practice location on file with NPPES is 9725 Se 36th St, Mercer Island, WA 98040-3841.
What is Dan Reiff's phone number?: The practice phone number listed in the NPPES registry for Dan Reiff is (206) 232-8404.
Is Dan Reiff's NPI active?: Yes — Dan Reiff's NPI (1184779845) is active in the NPPES registry as of the last update on 2025-09-11.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions